Question
Fabian jogged while Diana walked from the same place but in opposite directions along a straight road. After 4 hours, they were 24 km apart. Diana’s average speed was 1.4 km/h slower than Fabian’s average speed. What was Diana’s average walking speed in km/h? Express your answer in decimal.
3 m

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Fabian jogged while Diana walked from the same place but in opposite directions along a straight road. After 4 hours, they were 24 km apart. Diana’s average speed was 1.4 km/h slower than Fabian’s average speed. What was Diana’s average walking speed in km/h? Express your answer in decimal.